The sentence is:
I have got to wait for the bus.
Now if my friend wants to ask me about it,
First question is:
What would the question be?
- Have you got to wait for the bus?
- Do you have to wait for the bus?
Second question is:
What would be the answer?
- Yes I have
- Yes I have got
- Yes I do.
I think the word have got to is not an auxiliary verb, so I think we need to use the do both for the question and for the answer